For Problem 19.22, calculate the probability distribution and plot the probability distr...

For Problem 19.22, calculate the probability distribution and plot the probability distribution curve.

Problem 19.22:

As an electrical engineer, you have designed a new efficient light bulb. In order to predict its life expectancy, you conducted a series of experiments on 135 of these light bulbs and gathered the following data. Plot the data and calculate the mean and standard deviation.